Ski-Doo Ski Doo SUMMIT 2005 [349/1429] Drive pulley adjustment

Ski-Doo Ski Doo MX Z 2005 [349/1429] Drive pulley adjustment
Section 08 DRIVE SYSTEM
Subsection 02 (DRIVE PULLEY)
A16D0EA
1
TYPICAL
1. Align
Carefully slide governor cup into sliding half. Align
mark of governor cup with mark of fixed half.
Remove forks and push governor cup so that its
splines engage with fixed half shaft splines.
INSTALLATION
WARNING
Do not apply antiseize or any lubricant on
crankshaft and drive pulley tapers.
WARNING
Never use any type of impact wrench at drive
pulley removal and installation.
Clean mounting surfaces as described in CLEAN-
ING above.
Drive Pulley Assy
The following installation procedure must be
strictly adhered.
Install drive pulley on crankshaft extension.
Install a new conical spring washer no. 3 with its
concave side towards drive pulley then install drive
pulley bolt no. 2.
WARNING
Never substitute conical spring washer
and/or bolt with jobber ones. Always use
BRP genuine parts for this particular case.
Use the drive pulley holder (P/N 529 035 674). See
removal procedure.
Torque screw to 90 Nm(66lbfft).
Install drive belt and guard.
Raise and block the rear of the vehicle and support
it with a mechanical stand.
WARNING
Ensure that the track is free of particles which
could be thrown out while track is rotating.
Keep hands, tools, feet and clothing clear of
track. Ensure nobody is standing near the ve-
hicle.
Accelerate the vehicle at low speed (maximum
30km/h(20MPH))andapplythebrake,repeat5
times.
Retorque screw to 95 Nm(70lbfft).
WARNING
After 10 hours of operation the transmission
system of the vehicle must be inspected
to ensure the retaining screw is properly
torqued.
DRIVE PULLEY ADJUSTMENT
The drive pulley is factory calibrated to transmit
maximum engine power at a predefined RPM.
Factors such as ambient temperature, altitude
or surface condition may vary this critical engine
RPM thus affecting snowmobile efficiency.
This adjustable drive pulley allows setting maxi-
mum engine RPM in the vehicle to maintain max-
imum power.
Calibration screws should be adjusted so that ac-
tual maximum engine RPM in vehicle matches the
maximum horsepower RPM given in TECHNICAL
DATA.
NOTE: Use precision digital tachometer for engine
RPM adjustment.
NOTE: The adjustment has an effect on high RPM
only.
To adjust, modify ramp end position by turning cal-
ibration screws.
mmr2005-087 337

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